@inproceedings{ijcai1999p19,
  title     = {Query Evaluation and Progression in AOL Knowledge Bases},
  author    = {Lakemeyer, Gerhard and Levesque, Hector J.},
  booktitle = {Proceedings of the Sixteenth International Joint Conference on
               Artificial Intelligence, {IJCAI-99}},
  publisher = {International Joint Conferences on Artificial Intelligence},
  editor    = {Thomas Dean},
  pages     = {124--130},
  year      = {1999},
  note      = {Automated Reasoning},
  url       = {https://ijcai.org/proceedings/1999/19},
}